Don,

Open the message names browser and search for compile: . You'll most likely find the methods compile: , compile:classified: and compile:in:classified: most interesting. As a quick example, execute the code below in a workspace, it will add the instances method myMethod to the String class in the category 'complie-example'.

String compile: ' myMethod ^ ''testing'' ' classified: 'compile-example' .

Note that you will have to escape quotes... I hope this helps.

Travis

Don McLane wrote:

How can I add a method to a class from the workspace? Adding a class is easy, just send a message to the superclass. FileIn does it all the time, but I can't seem to do it with any variation of the format in a .st file.

For the curious: the reason I want to do this is to make a classroom demonstration go more smoothly.

Thanks, Don McLane

---

Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners

On Oct 22, 2007, at 19:22 , Don McLane wrote:

This is probably easy, but I can't seem to figure it out. How can I get a Form that has a font bitmap--preferably big and monospaced? I just want to demonstrate some elementary BitBlt operations.

(Text string: 'Hello World' attribute: (TextFontReference toFont: ((TextStyle named: 'Accumon') fontOfPointSize: 12))) asParagraph asForm

- Bert -

On 10/23/07, luisalejan1308 wrote:

Hello!!!! If you remember I talked to you about the extension "Frm", Frm is the necessary extent to pass one imagen to squeak and only I found the extention of PNG, so that process is wrong. I want that a robot looks like image that I import as FRM extention, but I used the all images on PNG extention. (Because the Squeak Book says that It needs a image in FRM Extention to use in the program with robots). How can I convert the formats images???

Aha! You mean Stephane Ducasse's book 'Squeak: Learn programming with robots'.

I found pages 69 and 70 with google books,

http://books.google.com/books?id=Zjp4t0qafZoC&pg=PA70&lpg=PA70&d...

So I downloaded BotsInc:

http://smallwiki.unibe.ch/botsinc/download/

Like you I am a newbie - but it seems the 'FRM' format of the turtle and spider image is the native Squeak 'Form' class:

http://www.oldenbuettel.de/squeak-doku/Graphics-Display%20Objects/Form.html

Unfortunately, I browsed that class, and I can't find a method for converting PNG files into FRM format.

Perhaps there is a way to make a Bot wear a PNG graphic as a costume (you can drag them into BotsInc easily, and they become a Sketch Morph. The halo menu has a 'Keep as bot costume' entry ) But, I don't have the whole Robots book, so I can't help any further. Sorry.

Instead, is there a paint tool in BotsInc for making new costumes?

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Hi All and thanks Edgar, David and Karl for your answers,

The person who made the question is one of my students. I invited him to ask here because I believe that becoming part of a community of practice is the best way to learn (well was nice to know that this "intuition" is deeply studied in the book Communities of Practice by Etienne Wenger).

With your help we finally found our way to make the Bots look like anything we want. The idea is that we made the dress for the Bot in an external program (inkscape, to have a freely scalable image), export to png and after that this code make the conversion the work:

| unaForma prueba | unaForma := ImageReadWriter formFromFileNamed: 'cactus.png'. prueba := FileStream newFileNamed: 'cactus', '.frm'. unaForma storeOn: prueba.

We are, as always, creating our organic memory in Eduwiki:

http://eduwiki.info/Dramabotica/Escenarios http://eduwiki.info/Dramabotica/Dialogos

So, with dressing and dialogs, dramabotics, looks advancing in good shape.

Cheers,

Offray

Pdt: Is nice to know that Bots Inc is in Google Books. Do you know if there is some organization which we can contact to support the liberation of this book and, for example, made Spanish freely distributable translations and even get some licensing scheme similar to the excellent Squeak by example?

karl wrote:

David Corking wrote:

...

On 10/23/07, luisalejan1308 wrote:

...

Hello!!!! If you remember I talked to you about the extension "Frm", Frm is the necessary extent to pass one imagen to squeak and only I found the extention of PNG, so that process is wrong. I want that a robot looks like image that I import as FRM extention, but I used the all images on PNG extention. (Because the Squeak Book says that It needs a image in FRM Extention to use in the program with robots). How can I convert the formats images???

Aha! You mean Stephane Ducasse's book 'Squeak: Learn programming with robots'.

I found pages 69 and 70 with google books,

http://books.google.com/books?id=Zjp4t0qafZoC&pg=PA70&lpg=PA70&d...

So I downloaded BotsInc:

http://smallwiki.unibe.ch/botsinc/download/

Like you I am a newbie - but it seems the 'FRM' format of the turtle and spider image is the native Squeak 'Form' class:

http://www.oldenbuettel.de/squeak-doku/Graphics-Display%20Objects/Form.html

Unfortunately, I browsed that class, and I can't find a method for converting PNG files into FRM format.

Perhaps there is a way to make a Bot wear a PNG graphic as a costume (you can drag them into BotsInc easily, and they become a Sketch Morph. The halo menu has a 'Keep as bot costume' entry ) But, I don't have the whole Robots book, so I can't help any further. Sorry.

Instead, is there a paint tool in BotsInc for making new costumes?

Once a png image is filed into Squeak it is a form. Karl _______________________________________________ Beginners mailing list Beginners@lists.squeakfoundation.org http://lists.squeakfoundation.org/mailman/listinfo/beginners

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Hi,

David Corking wrote:

On 10/27/07, Offray Vladimir Luna Cardenas wrote:

...

Hi All and thanks Edgar, David and Karl for your answers,

Edgar must have replied privately - I didn't see it.

...

The person who made the question is one of my students. I invited him to ask here because I believe that becoming part of a community of practice is the best way to learn (well was nice to know that this "intuition" is deeply studied in the book Communities of Practice by Etienne Wenger).

Some people don't like to answer schoolwork questions on mailing lists, but as long as it is encouraged by the teacher it is ok with me.

Luis - Next time it might help if you explain more detail about your project in the first mail. But don't worry, I think this is what the Newbies mailing list is for.

There is a BotsInc mailing list at:

http://smallwiki.unibe.ch/botsinc/community/

Well, we try our best before asking on the mailing list, but I don't see this learning process as a different one from the people who is learning from questions that emerged in their own research project instead of classroom projects. Classroom is too far away from community, so the idea is to make a bridge.

...

With your help we finally found our way to make the Bots look like anything we want. The idea is that we made the dress for the Bot in an external program (inkscape, to have a freely scalable image), export to png and after that this code make the conversion the work:

| unaForma prueba | unaForma := ImageReadWriter formFromFileNamed: 'cactus.png'. prueba := FileStream newFileNamed: 'cactus', '.frm'. unaForma storeOn: prueba.

Thanks for sharing your code. It doesn't work for me - but I will play with it as a learning exercise. I think 'costume' is a better English word than 'dress' :)

Thanks... I remembered that it was something like "custom", but when I search I didn't find the proper word. Thanks :)... mailing list are my main way to learn english until now. I don't know why your method did not work. Are you using the Bots Inc image? what is your error message?

...

We are, as always, creating our organic memory in Eduwiki:

http://eduwiki.info/Dramabotica/Escenarios http://eduwiki.info/Dramabotica/Dialogos

Good - I wish I could read Spanish!

Well, I would like to have a better English also ;)

You could always ask the author - Stephane - it was his idea to make 'Squeak by Example' free, as far as I know. But the Robots book is still in print, so I expect his publisher won't let him make it free. (I think Apress publish one or two freely distributable books - but I think that is negotiated before publication.)

Did you start translating 'Squeak by Example'?

Yep. Well, at this moment I'm more in the infrastructure part, because I want to use bazaar or some distributed control system instead of subversion for translation, so I'm trying to convert the subversion LaTeX sources to bazaar (with no much success now, but I have a clue about what's wrong).

Cheers,

Offray